On 11/10/2014 05:38 PM, Jack Bailey wrote: > On 11/10/2014 2:11 PM, Frank Cox wrote: >> I have both cable and dsl service. The router attached to the cable service is 192.168.0.1 and the router attached to the dsl service is 192.168.0.254. I determine which service my computers communicate through by setting the gateway assignment to either of those addresses and it just works. >> >> I can connect to my computers from the outside by port forwarding from my routers to the computer that I want to connect to. >> >> However, the outside ssh connection works only if the computer's gateway assignment matches the router that I'm connecting to. I suspect that I have to set up some sort of routing assignment to tell the computer to reply to the gateway that the ssh connection request came in on if it doesn't match the current gateway assignment, but I have no idea how to do that. >> > I also have two ISPs at home. I have a Peplink to manage this now, but > before that I some commands in rc.local. I had two networks and two > NICs on my workstation. This used to work on CentOS 6. > > ############################## > # symetric routing # > ############################## > > NIC1=eth0 > IP1=192.168.1.6 > GW1=192.168.1.1 > NET1=192.168.1.0/24 > > NIC2=eth1 > IP2=192.168.2.6 > GW2=192.168.2.1 > NET2=192.168.2.0/24 > > DEFGW=$GW2 > > cat << EOF > /etc/iproute2/rt_tables > # > # reserved values > # > 255 local > 254 main > 253 default > 0 unspec > # > # local > # > #1 inr.ruhep > > # symetric routing > 101 T1 > 102 T2 > EOF > > # routing and default gateway for each interface > ip route add $NET1 dev $NIC1 src $IP1 table T1 > ip route add default via $GW1 table T1 > ip route add $NET2 dev $NIC2 src $IP2 table T2 > ip route add default via $GW2 table T2 > > # regular routes > ip route add $NET1 dev $NIC1 src $IP1 > ip route add $NET2 dev $NIC2 src $IP2 > > # preference for default route > route delete default > ip route add default via $DEFGW > > # rules > ip rule add from $IP1 table T1 > ip rule add from $IP2 table T2 > > # enable routing > echo 1 > /proc/sys/net/ipv4/ip_forward > > Good luck, > Jack > > I can verify the above works just fine if all you want to be able to do is reach your system from outside over either isp.. -- Stephen Clark *NetWolves Managed Services, LLC.* Director of Technology Phone: 813-579-3200 Fax: 813-882-0209 Email: steve.clark at netwolves.com http://www.netwolves.com